CN201976034U - Solar photovoltaic power generation system - Google Patents
Solar photovoltaic power generation system Download PDFInfo
- Publication number
- CN201976034U CN201976034U CN2011200747543U CN201120074754U CN201976034U CN 201976034 U CN201976034 U CN 201976034U CN 2011200747543 U CN2011200747543 U CN 2011200747543U CN 201120074754 U CN201120074754 U CN 201120074754U CN 201976034 U CN201976034 U CN 201976034U
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- Prior art keywords
- generation system
- solar photovoltaic
- direct current
- emc filter
- direct
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model provides a solar photovoltaic power generation system, which comprises a plurality of direct-current photovoltaic assemblies, a plurality of micro inverters and an EMC (electromagnetic compatibility) filter. The direct-current photovoltaic assemblies are used for receiving solar energy to generate direct-current power, the micro inverters are respectively connected with the corresponding direct-current photovoltaic assemblies and are used for transforming the direct-current power generated by the respective direct-current photovoltaic assemblies into alternating-current power, and the EMC filter is respectively connected with the micro inverters and an alternating-current power grid and is used for filtration and networking output of the alternating-current power output by the micro inverters. Since EMC filter circuits are separated from each micro inverter, multiple alternating-current power generation units consisting of the direct-current photovoltaic assemblies and the micro inverters share one EMC filter with the EMC filter circuits, the size, the weight and the manufacturing cost of each micro inverter are reduced, the integration of the micro inverters and the direct-current photovoltaic assemblies is facilitated, and the reliability of the whole solar photovoltaic power generation system is improved.
Description
Technical field
The utility model relates to the solar energy power generating sciemtifec and technical sphere, and specifically, the utility model relates to a kind of solar photovoltaic generation system.
Background technology
The inverter that is used for solar photovoltaic generation system more and more trends towards the miniature inverter of distributed frame at present.Above-mentioned miniature inverter provides maximum power point control (MPPC for each direct current photovoltaic module, MaximumPower Point Controlling), thereby make each direct current photovoltaic module produce maximum electric flux, improve the generating efficiency of whole solar photovoltaic generation system.Miniature inverter also is used to produce the low-voltage alternating-current output of directly being incorporated into the power networks, rather than the High Level DC Voltage of center type inverter system, improves the fail safe and the generating efficiency of solar photovoltaic generation system.
Fig. 1 is the simple structure schematic diagram of a solar photovoltaic generation system of prior art.As shown in the figure, this solar photovoltaic generation system 100 can comprise:
A plurality of direct current photovoltaic modulies 101 are used to receive solar energy and produce direct current;
A plurality of miniature inverters 102 are connected with corresponding direct current photovoltaic module 101 respectively, and the direct current that is used for inciting somebody to action respectively direct current photovoltaic module 101 generations separately is converted to alternating current.
The output parallel connection of each miniature inverter 102, its alternating current are connected with AC network 105 with distribution box 104 by terminal box 103 successively.
Fig. 2 is the internal module schematic diagram of miniature inverter of a solar photovoltaic generation system of prior art.As shown in the figure, this miniature inverter 102 can comprise dc-ac conversion circuit 1021, control circuit 1022, telecommunication circuit 1023, auxiliary power circuit 1024 and EMC filter circuit 1025.
Each miniature inverter has EMC filter circuit separately in the prior art, to satisfy the requirement of EMC (ElectroMagnetic Compatibility, Electro Magnetic Compatibility).Yet, each EMC filter circuit all needs to use electronic components such as a lot of inductance, electric capacity, miniature in addition inverter adopts encapsulating to dispel the heat usually and completely cuts off moist, this all can increase volume, weight and the manufacturing cost of each miniature inverter, be unfavorable for that miniature inverter is mutually integrated with the direct current photovoltaic module, influence the reliability of miniature inverter and even whole solar photovoltaic generation system.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of solar photovoltaic generation system, volume, weight and the manufacturing cost of each miniature inverter in can the reduction system, it is mutually integrated with the direct current photovoltaic module to help miniature inverter, improves the reliability of whole solar photovoltaic generation system.
For solving the problems of the technologies described above, the utility model provides a kind of solar photovoltaic generation system, comprises a plurality of direct current photovoltaic modulies, is used to receive solar energy and produces direct current, also comprises:
A plurality of miniature inverters are connected with corresponding direct current photovoltaic module respectively, and the direct current that is used for inciting somebody to action respectively direct current photovoltaic module generation separately is converted to alternating current;
An EMC filter is connected with AC network with described a plurality of miniature inverters respectively, is used for alternating current to described a plurality of miniature inverters outputs and carries out the output of being incorporated into the power networks after the filtering.
Alternatively, described miniature inverter comprises dc-ac conversion circuit, control circuit, telecommunication circuit and auxiliary power circuit.
Alternatively, described EMC filter comprises the EMC filter circuit.
Alternatively, described EMC filter is connected with AC network with distribution box by terminal box successively.
Alternatively, described EMC filter circuit comprises safe electric capacity and inductance filter.
Compared with prior art, the utlity model has following advantage:
The utility model is by separating the EMC filter circuit in each miniature inverter, a plurality of shared EMC filters of forming by direct current photovoltaic module and miniature inverter that comprise this EMC filter circuit of alternating current generation unit, volume, weight and the manufacturing cost of each miniature inverter have not only been cut down, it is mutually integrated with the direct current photovoltaic module to help miniature inverter, has also improved the reliability of whole solar photovoltaic generation system.
Description of drawings
The above and other feature of the present utility model, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the simple structure schematic diagram of a solar photovoltaic generation system of prior art;
Fig. 2 is the internal module schematic diagram of miniature inverter of a solar photovoltaic generation system of prior art;
Fig. 3 is the simple structure schematic diagram of the solar photovoltaic generation system of an embodiment of the utility model;
Fig. 4 is the internal module schematic diagram of miniature inverter of the solar photovoltaic generation system of an embodiment of the utility model;
Fig. 5 is the rough schematic of EMC part of detecting of the solar photovoltaic generation system of an embodiment of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiments and the drawings, but should not limit protection range of the present utility model with this.
Fig. 3 is the simple structure schematic diagram of the solar photovoltaic generation system of an embodiment of the utility model.As shown in the figure, this solar photovoltaic generation system 200 can comprise a plurality of direct current photovoltaic modulies 201, and they are used to receive solar energy and produce direct current.In addition, solar photovoltaic generation system 200 can also comprise:
A plurality of miniature inverters 202 are connected with corresponding direct current photovoltaic module 201 respectively, and the direct current that is used for inciting somebody to action respectively direct current photovoltaic module 201 generations separately is converted to alternating current;
An EMC filter 206, one end is connected with a plurality of miniature inverters 202 respectively, the other end can be connected with AC network 205 with distribution box 204 by terminal box 203 successively, and it is used for alternating current to a plurality of miniature inverters 202 outputs and carries out the output of being incorporated into the power networks after the filtering.
This shows, a plurality of shared EMC filters of forming by direct current photovoltaic module 201 and miniature inverter 202 206 that include the EMC filter circuit of alternating current generation unit, and this EMC filter circuit comprises safe electric capacity and inductance filter.
Fig. 4 is the internal module schematic diagram of miniature inverter of the solar photovoltaic generation system of an embodiment of the utility model.As shown in the figure, the miniature inverter 202 in the present embodiment can be made up of dc-ac conversion circuit 2021, control circuit 2022, telecommunication circuit 2023 and auxiliary power circuit 2024.
In addition, Fig. 5 is the rough schematic of EMC part of detecting of the solar photovoltaic generation system of an embodiment of the utility model.As shown in the figure, this EMC part of detecting 207 comprises each miniature inverter 202 and an EMC filter 206, so when a solar photovoltaic generation system 200 being carried out the EMC test, not to carry out the EMC test respectively for each miniature inverter 202 one by one individually, but the EMC part of detecting 207 shown in the figure is concentrated test
The utility model is by separating the EMC filter circuit in each miniature inverter, a plurality of shared EMC filters of forming by direct current photovoltaic module and miniature inverter that comprise this EMC filter circuit of alternating current generation unit, volume, weight and the manufacturing cost of each miniature inverter have not only been cut down, it is mutually integrated with the direct current photovoltaic module to help miniature inverter, has also improved the reliability of whole solar photovoltaic generation system.
Though the utility model with preferred embodiment openly as above; but it is not to be used for limiting the utility model; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection range of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (5)
1. a solar photovoltaic generation system comprises a plurality of direct current photovoltaic modulies, is used to receive solar energy and produces direct current, it is characterized in that, also comprises:
A plurality of miniature inverters are connected with corresponding direct current photovoltaic module respectively, and the direct current that is used for inciting somebody to action respectively direct current photovoltaic module generation separately is converted to alternating current;
An EMC filter is connected with AC network with described a plurality of miniature inverters respectively, is used for alternating current to described a plurality of miniature inverters outputs and carries out the output of being incorporated into the power networks after the filtering.
2. solar photovoltaic generation system according to claim 1 is characterized in that, described miniature inverter comprises dc-ac conversion circuit, control circuit, telecommunication circuit and auxiliary power circuit.
3. solar photovoltaic generation system according to claim 1 and 2 is characterized in that, described EMC filter comprises the EMC filter circuit.
4. solar photovoltaic generation system according to claim 1 is characterized in that, described EMC filter is connected with AC network with distribution box by terminal box successively.
5. solar photovoltaic generation system according to claim 3 is characterized in that, described EMC filter circuit comprises safe electric capacity and inductance filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200747543U CN201976034U (en) | 2011-03-21 | 2011-03-21 | Solar photovoltaic power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200747543U CN201976034U (en) | 2011-03-21 | 2011-03-21 | Solar photovoltaic power generation system |
Publications (1)
| Publication Number | Publication Date |
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| CN201976034U true CN201976034U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200747543U Expired - Lifetime CN201976034U (en) | 2011-03-21 | 2011-03-21 | Solar photovoltaic power generation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201976034U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437793A (en) * | 2011-10-21 | 2012-05-02 | 浙江昱能光伏科技集成有限公司 | Distributed grid-connected solar energy photovoltaic system |
| CN102496955A (en) * | 2011-11-24 | 2012-06-13 | 浙江昱能光伏科技集成有限公司 | Intelligent photovoltaic system and method for data detection and transmission |
| CN113691195A (en) * | 2021-08-17 | 2021-11-23 | 安徽大恒能源科技有限公司 | Micro-unit intelligent photovoltaic system and installation steps thereof |
| US11451052B2 (en) | 2018-05-04 | 2022-09-20 | Nextracker Llc | Systems and methods of DC power conversion and transmission for solar fields |
-
2011
- 2011-03-21 CN CN2011200747543U patent/CN201976034U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437793A (en) * | 2011-10-21 | 2012-05-02 | 浙江昱能光伏科技集成有限公司 | Distributed grid-connected solar energy photovoltaic system |
| CN102437793B (en) * | 2011-10-21 | 2014-07-23 | 浙江昱能科技有限公司 | Distributed grid-connected solar energy photovoltaic system |
| CN102496955A (en) * | 2011-11-24 | 2012-06-13 | 浙江昱能光伏科技集成有限公司 | Intelligent photovoltaic system and method for data detection and transmission |
| CN102496955B (en) * | 2011-11-24 | 2013-12-04 | 浙江昱能光伏科技集成有限公司 | Intelligent photovoltaic system and method for data detection and transmission |
| US11451052B2 (en) | 2018-05-04 | 2022-09-20 | Nextracker Llc | Systems and methods of DC power conversion and transmission for solar fields |
| CN113691195A (en) * | 2021-08-17 | 2021-11-23 | 安徽大恒能源科技有限公司 | Micro-unit intelligent photovoltaic system and installation steps thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG YUNENG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ALTENERGY POWER SYSTEM INC. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 314050 Jiaxing, South Lake District, Zhejiang, Asia Pacific Road, No. 1 Patentee after: Zhejiang Yuneng Technology Co., Ltd. Address before: 314050 Jiaxing, South Lake District, Zhejiang, Asia Pacific Road, No. 1 Patentee before: Altenergy Power System Inc. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 3 / F, building 1, No. 1, Asia Pacific Road (Jiaxing Science and technology city), Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Yuneng Technology Co., Ltd Address before: 314050 No. 1 Asia Pacific Road, Nanhu District, Zhejiang, Jiaxing Patentee before: Zhejiang Yuneng Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |